Red Sox kicks off plan to bring all BPS 6th graders to Fenway Park
MassMutual becomes 'signature sponsor' for Boston Red Sox
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Twins making careful decision about ad patches on players' jerseys
St. Louis Cardinals land Stifel as first jersey patch sponsor
MassMutual, Red Sox announce multiyear partnership
MLB Jerseys' to Feature Corporate Sponsor Logos for First Time Ever In 2023
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
Red Sox Reportedly Strike $170M Jersey Patch Deal